diff --git a/user_auth/v4_0/UserAuthTypes.idl b/user_auth/v4_0/UserAuthTypes.idl
index 573d6af97fcbacb53b876348c7269644c71cb68e..787c0d55f32cc46e5a6227cd6c993c6f90ceaa30 100644
--- a/user_auth/v4_0/UserAuthTypes.idl
+++ b/user_auth/v4_0/UserAuthTypes.idl
@@ -607,6 +607,6 @@ struct CredentialOperateResult {
     /** schedule information. */
     ScheduleInfo scheduleInfo;
     /** credential information. */
-    CredentialInfo credentialInfo;
+    CredentialInfo[] credentialInfos;
 };
 /** @} */
\ No newline at end of file